Refrigeration & Air Conditioning Mechanic Red Seal · Question
A TXV system is experiencing low suction pressure and high superheat. What is the most likely cause related to the TXV?
If the TXV sensing bulb loses its charge, it will prevent the TXV from opening sufficiently, resulting in a starved evaporator, low suction pressure, and high s
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Question: A TXV system is experiencing low suction pressure and high superheat. What is the most likely cause related to the TXV?
Answer options: ✅ TXV sensing bulb has lost its charge.
- TXV is overfeeding the evaporator.
- TXV bypass port is stuck open.
- TXV internal pressure equalizer line is restricted.
Correct answer: TXV sensing bulb has lost its charge.
Explanation: If the TXV sensing bulb loses its charge, it will prevent the TXV from opening sufficiently, resulting in a starved evaporator, low suction pressure, and high superheat. This is a common TXV malfunction symptom.
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- Which of the following refrigerants is a hydrofluorocarbon (HFC) and has a high ozone depletion potential (ODP
- Which component is responsible for compressing the refrigerant vapour to a high pressure and temperature?
- According to the Canadian Electrical Code (CEC), what is the minimum required working clearance in front of el
- What is the main operating characteristic difference between a fixed orifice (capillary tube) and a Thermostat
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